Owen reilly



O. REILLY.4 VGrate-Bar.

No. 225,419. Patente/d Mar. 9,'1'880.v

l IIIIIIII a 1 l LPET'EES. PHOTO-LITHOGRAPME?. WASHINGTON, D. U.

PATENT DEEicE.

oWEN REILLY, or NEW YORK, N. Y,

GRATE-BAR.

SPECIFICATION forming part of Letters Patent No. 225,419, dated March 9, 1880.

Application filed October 23, 1879.

To all whom 'it may concern:

Be it known that I, OWEN REILLY, of the city, county, and State of N ew York, have invented certain new and useful Improvements in'Grate-Bars, of which the following is a speciiication.

An important object of my improvements is to preclude the warping of grate-bars or the Webs thereof through excessive heating.

l construct a grate-bar of a web and independent detachable and removable fuelsurface sections of novel construction,with or Without means for locking said sections to the Web, and I provide Jthe web with a socket or sockets and the fuel-surface with a tongue or tongues Which iit in the said socket or sockets., the said sockets being Wider than the web, so as to prevent the fuel-surface from tilting, and preferably, also, larger than the said tongues, and open at the bottom and top, so as to afford a free circulation of air round said tongues for keeping the web cool and supporting combustion.

In the accompanying drawings, Figure l is a partly sectional side view of a grate-bar embodying my improvements. Fig. 2 is a perspective view of one of thefuel-surface sections, and Fig. 3 is a 4perspective view of the port-ion ofthe Web of the grate-bar to which a section of the fuel-supporting surface is secured.

Similar letters of reference designate corresponding parts in all the figures.

A designates what I term the Web7 of the grate-bar, which, in other Words, is the vertically-extendin g portion designed for sustaining the weight which may be imposed on the grate-bar. It is provided at the ends with bearers a, for resting on the supports in the combustion chamber, furnace, or fire box, where it is to be used, and has an uneven upper surface or edge composed of supporting or contactpoints Z), on which the fuel-surface sections rest, and intervening spaces c, forming ducts or apertures through which air may circulate.

B designates sections of the fuel-surface of the grate-bar. Though they may be of any desirable number they are shown as three only. They rest upon the upper side of the Web A, and, as here shown, are provided With tongues or shanks d, which enter sockets or rin g-shaped extensions e, With Which the Web is provided, and which are'open at the top and bottom and wider than the Web, so as to prevent the fuelsurfaceY sections from tilting. The tongues or shanks have no contact with. said sockets, except such slight contact at the edges of the tongues or shanks as Will preclude the longitudin al displacement of the said sections, a free circulation of air between the Ytongues and sockets being otherwise afforded.

As shown, these sockets e of the Web have at the upper edge supporting or contact points b', sustaining the sections of fuel-surface laterally at some distance from the center, and therefore affording them great stability, and these sockets have air-ducts o between their supporting or contact points b.

If desirable7 the sections B of fuel-surface may be locked rigidly tothe web A, and to admit of this I have provided their tongues d with projections or hooks j', Which may slip under lugs y projecting from the interior of the sockets e. /Vhen these hooks f and lugs g are employed it Will be necessary to insert the tongues (l in the sockets c, and thereafter to slip the sections B sidewise to effect the engagement of the hooks j With said lugs g.

To prevent the slipping of the sections B,so that the hooks f will be disengaged from the lugs g, I provide the sections on the under side with ribs or toes h, impinging against one side of the web .A, and insert a key, C, between the side of the tongues d farthest from said ribs or toes 7L and the adjacent side of the sockets e.

The sections B are, in this example of my invention, composed of three longitudinal ribs and transverse angular ribs converging toward the central longitudinal rib, and their side and end edges are provided with lugs' or projections for keeping the sections apart.

It will be seen that by my invention the fuelsurface sections are afforded a very stable support upon the Web, and all parts are so constituted and arranged that a free circulation of air is produced at all parts thereof.

What I claim as my invention, and desire to secure by Letters Patent, is

l. A grate-bar comprising the combination of a Web provided With an annular socket or sockets and a detachable and removable fuel- IOO surface provided with a tongue or tongues tting in the aforesaid socket or sockets, the said 'socket or sockets being Wider than the web proper and forming extended supports for the fuel-surfaces, preventing them from tilting, substantially as specified.

2. A grate-bar comprising the combination of a Web provided with an annular socket or sockets and a detachable and removable fuelsurfaoe provided with a tongue or tongues itting in the aforesaid socket or sockets, the said socket or sockets being Wider than the web proper to afford an extended support for said fuel-surface, and the said Web being provided upon its upper edge and around the upper edges of said sockets with isolated bear in g-points for the fuel-surface, substantially as and for the purpose specified.

3. A gratebar comprising the combination of a web provided With a socket or sockets and a detachable and removable fuel-surface provided With a tongue or tongues fitting in the aforesaid socket or sockets,the said socket or sockets being open at the bottom and top,

' and being sufficiently wider than said tongues to afford a free circulation of air through them around said tongues to support combustion and keep the web cool, substantially as specified.

4. The combination, in a grate-bar, of a web 'provided With a socket, a detachable and re- 

